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Study Of Twin Rotary Compressor For Air-Conditioner With Inverter System, K. Okoma, M. Tahata, H. Tsuchiyama Jan 1990

Study Of Twin Rotary Compressor For Air-Conditioner With Inverter System, K. Okoma, M. Tahata, H. Tsuchiyama

International Compressor Engineering Conference

No abstract provided.


The Effects Of Design Parameters On The Displacement And Compression Ratio Of The Wankel Rotary Compressor, J. E. Beard, G. R. Pennock Jan 1990

The Effects Of Design Parameters On The Displacement And Compression Ratio Of The Wankel Rotary Compressor, J. E. Beard, G. R. Pennock

International Compressor Engineering Conference

No abstract provided.


A Pressure Sensitive Mat For Measuring Contact Pressure Distributions Of Patients Lying On Hospital Beds, Charles F. Babbs, Joe D. Bourland, George P. Graber, James T. Jones, William E. Schoenlein Jan 1990

A Pressure Sensitive Mat For Measuring Contact Pressure Distributions Of Patients Lying On Hospital Beds, Charles F. Babbs, Joe D. Bourland, George P. Graber, James T. Jones, William E. Schoenlein

Weldon School of Biomedical Engineering Faculty Publications

The authors describe a novel system for sensing and displaying the distribution of contact pressure caused by a patient's lying on a hospital bed. The system includes a flexible, pressure sensitive mat, electronics to activate the mat, a small computer to process data, and a color video display. The present prototypes can sense pressure at 1,536 discrete locations in a rectangular grid of 24 x 64 nodes, each node representing an area of 4 cm2. The computer receives data from each node and displays the results as a false-color map, refreshable every 5 seconds. The pressure sensitive mat itself includes …


Accuracy And Precision Of Computer-Simulated Tissue Temperatures In Individual Human Intracranial Tumours Treated With Interstitial Hyperthermia, J A. Deford, Charles F. Babbs, U H. Patel, N E. Fearnot, J A. Marchosky, C J. Moran Jan 1990

Accuracy And Precision Of Computer-Simulated Tissue Temperatures In Individual Human Intracranial Tumours Treated With Interstitial Hyperthermia, J A. Deford, Charles F. Babbs, U H. Patel, N E. Fearnot, J A. Marchosky, C J. Moran

Weldon School of Biomedical Engineering Faculty Publications

Accurate knowledge of tissue temperature is necessary for effective delivery of clinical hyperthermia in the treatment of malignant tumours. This report compares computer-predicted versus measured intratumoral temperatures in 11 human subjects with intracranial tumours, treated with a conceptually simple 'conductive' interstitial hyperthermia system. Interstitial hyperthermia was achieved by the use of parallel arrays of implanted, electrically heated catheters. The tissue was warmed by thermal conduction and blood convection. Simulation of intratumoral temperatures was achieved by solving a modified bioheat transfer equation on a digital computer using a finite difference method. Comparison of intratumoral temperatures from simulations and measured values differed …


Mechanical Efficiency Of A Variable Speed Scroll Compressor, N. Ishii, M. Yamamura, S. Muramatsu, S. Yamamoto, M. Sakai Jan 1990

Mechanical Efficiency Of A Variable Speed Scroll Compressor, N. Ishii, M. Yamamura, S. Muramatsu, S. Yamamoto, M. Sakai

International Compressor Engineering Conference

No abstract provided.


Optimal Code Scheduling For Multiple-Pipeline Processors, Ashar Nisar, Henry G. Dietz Jan 1990

Optimal Code Scheduling For Multiple-Pipeline Processors, Ashar Nisar, Henry G. Dietz

Department of Electrical and Computer Engineering Technical Reports

Pipelining the functional units and memory interface of processors can result in shorter cycle times and dramatic increases in performance, but only if the pipeline latency can be hidden by other useful operations. The portion of pipeline latency which is not hidden results in an extension of the total execution time, either implemented by hardware interlocks or by compile-time insertion of NOPs (Null Operations). By rearranging instructions, it is possible to minimize the total pipelined execution time, but the problem of finding this optimal code schedule is well known to be NP-complete. In this paper, we describe a code scheduler …


The Characteristics Of Small Capacity Scroll Compressors For Residential Air Conditioners, Y. Shibamoto, S. Fujimoto, S. Takano, M. Higuchi, Y. Matoba, M. Dobuchi, Y. Saitoh Jan 1990

The Characteristics Of Small Capacity Scroll Compressors For Residential Air Conditioners, Y. Shibamoto, S. Fujimoto, S. Takano, M. Higuchi, Y. Matoba, M. Dobuchi, Y. Saitoh

International Compressor Engineering Conference

No abstract provided.


A Research Of Scroll Compressor Working Process Computer Simulation And Testing, Z. Jie, W. Disheng Jan 1990

A Research Of Scroll Compressor Working Process Computer Simulation And Testing, Z. Jie, W. Disheng

International Compressor Engineering Conference

No abstract provided.


An Integrated Approach To Reciprocating Compressor Design, K. Venkateswarlu, N. J. Rao, E. V. Venugopal, S. Akella Jan 1990

An Integrated Approach To Reciprocating Compressor Design, K. Venkateswarlu, N. J. Rao, E. V. Venugopal, S. Akella

International Compressor Engineering Conference

No abstract provided.


Visualization Of Scroll Compressor Dynamics Via Computer Graphics, E. A. Tomayto, L. Su Jan 1990

Visualization Of Scroll Compressor Dynamics Via Computer Graphics, E. A. Tomayto, L. Su

International Compressor Engineering Conference

No abstract provided.


Dynamic Behavior Of A Variable Displacement Wobble Plate Compressor For Automotive Air Conditioners, N. Ishii, Y. Abe, T. Taguchi, T. Kitamura Jan 1990

Dynamic Behavior Of A Variable Displacement Wobble Plate Compressor For Automotive Air Conditioners, N. Ishii, Y. Abe, T. Taguchi, T. Kitamura

International Compressor Engineering Conference

No abstract provided.


An Acoustic Transfer Matrix Model For Compressor And Condenser Interaction, J. E. Farstad, R. Singh Jan 1990

An Acoustic Transfer Matrix Model For Compressor And Condenser Interaction, J. E. Farstad, R. Singh

International Compressor Engineering Conference

No abstract provided.


Optimum Combination Of Dimensions For High Mechanical Efficiency Of A Rolling-Piston Rotary Compressor, N. Ishii, M. Fukushima, M. Yamarnura, S. Fujiwara, S. Kakita Jan 1990

Optimum Combination Of Dimensions For High Mechanical Efficiency Of A Rolling-Piston Rotary Compressor, N. Ishii, M. Fukushima, M. Yamarnura, S. Fujiwara, S. Kakita

International Compressor Engineering Conference

No abstract provided.


A Fluid Flow And Valve Force Model For The Suction Side Of A Variable Speed Heat Pump Compressor, S. D. Lewis, G. W. Gatecliff Jan 1990

A Fluid Flow And Valve Force Model For The Suction Side Of A Variable Speed Heat Pump Compressor, S. D. Lewis, G. W. Gatecliff

International Compressor Engineering Conference

No abstract provided.


A Computational Study Of The Interaction Between Fluid Flow And Reed Valve Deformation, J. Piechna Jan 1990

A Computational Study Of The Interaction Between Fluid Flow And Reed Valve Deformation, J. Piechna

International Compressor Engineering Conference

No abstract provided.


Noise Reduction Of Hermetic Compressor By Identification Of The Gas Cavity Resonance, F. Albrizio, C. Genoni, V. Bianchi, G. Frontini Jan 1990

Noise Reduction Of Hermetic Compressor By Identification Of The Gas Cavity Resonance, F. Albrizio, C. Genoni, V. Bianchi, G. Frontini

International Compressor Engineering Conference

No abstract provided.


Convergence Of Gas Pulsation Simulations When Combining Time And Frequency Domains Iteratively, J. Kim, W. Soedel Jan 1990

Convergence Of Gas Pulsation Simulations When Combining Time And Frequency Domains Iteratively, J. Kim, W. Soedel

International Compressor Engineering Conference

No abstract provided.


Dynamic Analysis Of A Rotor-Journal Bearing System For Twin Rotary Compressors, H. Hattori, N. Kawashima Jan 1990

Dynamic Analysis Of A Rotor-Journal Bearing System For Twin Rotary Compressors, H. Hattori, N. Kawashima

International Compressor Engineering Conference

No abstract provided.


Friction Losses Measurements On A Reciprocating Compressor Mechanism, D.E. B. Lilie, M. Krueger Jan 1990

Friction Losses Measurements On A Reciprocating Compressor Mechanism, D.E. B. Lilie, M. Krueger

International Compressor Engineering Conference

No abstract provided.


Diagnosis Of Slides In Rotary Compressors Using Acoustic Emission Technique, K. Sato, H. Hata, T. Tanaka, I. Sato, T. Yoneyama Jan 1990

Diagnosis Of Slides In Rotary Compressors Using Acoustic Emission Technique, K. Sato, H. Hata, T. Tanaka, I. Sato, T. Yoneyama

International Compressor Engineering Conference

No abstract provided.


Considerations About The Leakage Through The Minimal Clearance In A Rolling Piston Compressor, C.M.N. F. Costa, R. T. S. Ferreira, A. T. Prata Jan 1990

Considerations About The Leakage Through The Minimal Clearance In A Rolling Piston Compressor, C.M.N. F. Costa, R. T. S. Ferreira, A. T. Prata

International Compressor Engineering Conference

No abstract provided.


Some Thermodynamic Performance Test Results Of Refrigerant 134a, W. K. Snelson, J. W. Linton, P. F. Hearty, T. N. Duong Jan 1990

Some Thermodynamic Performance Test Results Of Refrigerant 134a, W. K. Snelson, J. W. Linton, P. F. Hearty, T. N. Duong

International Refrigeration and Air Conditioning Conference

No abstract provided.


Organization For Applied Scientific Research Tno, The Netherlands, "Alternative, Environmentally Acceptable Refrigerating Cycles: A Solution For The Cfc Issue?, R. J. M. Van Gerwen Jan 1990

Organization For Applied Scientific Research Tno, The Netherlands, "Alternative, Environmentally Acceptable Refrigerating Cycles: A Solution For The Cfc Issue?, R. J. M. Van Gerwen

International Refrigeration and Air Conditioning Conference

No abstract provided.


Investigation On Cfc Diffusivity With An Improved Double Volume Method, K. Dang, Y. Wu Jan 1990

Investigation On Cfc Diffusivity With An Improved Double Volume Method, K. Dang, Y. Wu

International Refrigeration and Air Conditioning Conference

No abstract provided.


Thermodynamic Performance Limit And Evaporator Design Considerations For Narm-Based Domestic Refrigerator-Freezer Systems, M. K. Smith, M. C. Heun, R. R. Crawford, T. A. Newell Jan 1990

Thermodynamic Performance Limit And Evaporator Design Considerations For Narm-Based Domestic Refrigerator-Freezer Systems, M. K. Smith, M. C. Heun, R. R. Crawford, T. A. Newell

International Refrigeration and Air Conditioning Conference

No abstract provided.


Phaseout Of Chlorofluorocarbon Refrigerants And Opportunities For Evaporative Cooling, R. E. Foster, G. W. Mcdonald, M. Heller Turietta Jan 1990

Phaseout Of Chlorofluorocarbon Refrigerants And Opportunities For Evaporative Cooling, R. E. Foster, G. W. Mcdonald, M. Heller Turietta

International Refrigeration and Air Conditioning Conference

No abstract provided.


An Experimental Evaluation Of The Heat Transfer Coefficients Of R-134a Relative To R-12, M. W. Spatz, Jing Zheng Jan 1990

An Experimental Evaluation Of The Heat Transfer Coefficients Of R-134a Relative To R-12, M. W. Spatz, Jing Zheng

International Refrigeration and Air Conditioning Conference

No abstract provided.


A Comparative Performance Of Freon Ejector Refrigeration Systems, V. Charan Jan 1990

A Comparative Performance Of Freon Ejector Refrigeration Systems, V. Charan

International Refrigeration and Air Conditioning Conference

No abstract provided.


Experimental Investigation On An Adsorption System For Producing Chill Water, R. Zhu, B. Han, M. Lin, Y. Yu Jan 1990

Experimental Investigation On An Adsorption System For Producing Chill Water, R. Zhu, B. Han, M. Lin, Y. Yu

International Refrigeration and Air Conditioning Conference

No abstract provided.


New Methods Of Determining Viscosity And Pressure Of Refrigerant/Lubricant, H. O. Spauschus, D. R. Henderson Jan 1990

New Methods Of Determining Viscosity And Pressure Of Refrigerant/Lubricant, H. O. Spauschus, D. R. Henderson

International Refrigeration and Air Conditioning Conference

No abstract provided.